Compare: 2023 Ridley Bikes Kanzo A GRX400/600 XL vs 2025 ASSISTING FORCE AF01 Base XL

Insights

Average stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of Ridley Bikes Kanzo A

Average stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of ASSISTING FORCE AF01

Stack	636mm	624mm -12mm
Reach	399mm	402mm +3mm
Stack to Reach Ratio	1.59:1	1.55:1
Seat Tube Length, C-T	600mm	—
Seat Tube Length, Unknown	—	511mm
Top Tube Length, Effective/Horizontal Unknown	600mm	593mm -7mm
Top Tube Length, Actual C-C	895mm	—
Top Tube Slope	6.3deg	13.8deg +7.5deg
Head Tube Angle	71.5deg	71.5deg +0deg
Seat Tube Angle	72.5deg	73deg +0.5deg
Head Tube Length	213mm	200mm -13mm
Bottom Bracket Drop	70mm	76mm +6mm
Bottom Bracket Height	279mm	277mm -2mm
Chainstay Length	430mm	425mm -5mm
Chainstay Length Horizontal	424.3mm	418.2mm -6.1mm
Front-Center	645.5mm	648mm +2.5mm
Front-Center Horizontal	641.7mm	642.9mm +1.2mm
Wheelbase	1066mm	1061mm -5mm
Fork Offset/Rake	50.6mm	55mm +4.4mm
Fork Length, Unknown	—	395mm
Trail	63.4mm mid/neutral	60.1mm -3.3mm mid/neutral
Mechanical Trail	60.1mm	57mm -3.1mm
Wheel Flop	19.1mm	18.1mm -1mm
Standover Height	888mm	—
Tire to Pedal Spindle	126.5mm 170 mm cranks	125mm -1.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	107mm -2mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	38mm	42mm +4mm
Tire Outer Diameter	698mm	706mm +8mm
Bike Length with Tires	1764mm	1767mm +3mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Aluminum	Carbon/Composite
Fork Material	Unknown	Carbon/Composite
Brake Type	Rim	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://www.ridley-bikes.com/en_INT/bikes/SBIXTARID677	https://afbicycles.com/
Brand	Ridley Bikes	ASSISTING FORCE
Bike	2023 Kanzo A GRX400/600	2025 AF01 Base
Size	XL	XL
Category	All-road/Gravel	All-road/Gravel